nigricollaris, Horabagrus Pethiyagoda [R.] & Kottelat [M.] 1994:110, Fig. 13 [Journal of South Asian Natural History v. 1 (no. 1); ref. 21421] Chalakudy River, 26 kilometers upstream of Chalakudy town, near Vettilappara, Kerala, India. Holotype: AMS I.34198-001. Paratypes: AMS I.34198-002 [not 001] (2); CMK 8751 (3); WHT 443 (2); ZRC 34510-11 (1, 1); ZSI-SRS uncat. (2). Type catalog: Ferraris 2007:429 [ref. 29155], Ng & Kim 2008:45 [ref. 29920]. •Valid as Pseudobagrus nigricollaris (Pethiyagoda & Kottelat 1994) -- (Menon 1999:213 [ref. 24904]). •Valid as Horabagrus nigricollaris Pethiyagoda & Kottelat 1994 -- (Burgess & Finley 1996:164 [ref. 22901], Aijthkumar et al. 1999:249 [ref. 24211], Raju Thomas et al. 2002:50 [ref. 26359], Jayaram 2006:144 [ref. 28762], Ferraris 2007:429 [ref. 29155], Plamoottil & Abraham 2013:280 [ref. 32985], Ali et al. 2014:380 [ref. 33555], Narasimhaiah et al. 2016:69 [ref. 34975]). Current status: Valid as Horabagrus nigricollaris Pethiyagoda & Kottelat 1994. Horabagridae. Distribution: India. Habitat: freshwater.